Using Formulas

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Using Formulas

• Plug Chug

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1) The density of an object can be found by
dividing the mass of an object by its volume.
M
D
V
3
1) The density of an object can be found by
dividing the mass of an object by its volume.
Jasons mass is 39,000 grams. His volume is
36,000 cm3. What is his density.
M
D
V
4
1) The density of an object can be found by
dividing the mass of an object by its volume.
39,000 g
D
36,000 cm3
D 1.083 g/cm3
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2) The perimeter of a rectangle can be found by
adding the length the width, and then doubling
this sum.
P 2(L W)
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2) The perimeter of a rectangle can be found by
adding the length the width, and then doubling
this sum.
Find the perimeter of this rectangle.
P 2(L W)
58 cm
23 cm
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2) The perimeter of a rectangle can be found by
adding the length the width, and then doubling
this sum.
Find the perimeter of this rectangle.
P 2(L W)
P 2(23 58)
58 cm
P 2(81)
P 162 cm
23 cm
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3) The area of a triangle can be found by
multiplying the base by the height and dividing
by 2.
A b x h 2
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3) The area of a triangle can be found by
multiplying the base by the height and dividing
by 2.
Find the area of the triangle.
A b x h 2
50 in
40 in
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3) The area of a triangle can be found by
multiplying the base by the height and dividing
by 2.
Find the area of the triangle.
A b x h 2
A 40 x 50 2
50 in
A 2000 2
40 in
A 1000 in2
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4) The circumference of a circle can be found by
multiplying the diameter of a circle by pi.
C 3.14d
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4) The circumference of a circle can be found by
multiplying the diameter of a circle by pi.
Find the circumference of the circle.
C 3.14d
12 ft
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4) The circumference of a circle can be found by
multiplying the diameter of a circle by pi.
Find the circumference of the circle.
C 3.14d
12 ft
C 3.14(12)
C 37.68 ft
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5) Profit can be found by subtracting your costs
from your revenue. Revenue is the amount of
money that your earn.
P R - C
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5) Profit can be found by subtracting your costs
from your revenue. Revenue is the amount of
money that your earn.
P R - C
Patrick spent 6.00 on lemons, 2.00 on ice, and
1.50 on cups. His lemonade stand earned 12.00
over the weekend. How much profit did Patrick
make?
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5) Profit can be found by subtracting your costs
from your revenue. Revenue is the amount of
money that your earn.
P R - C
Patrick spent 6.00 on lemons, 2.00 on ice, and
1.50 on cups. His lemonade stand earned 12.00
over the weekend. How much profit did Patrick
make?
P 12 9.50
P 2.50
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6) The volume of a cube can be found by
multiplying the length times the width times the
height.
V L x W x H
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6) The volume of a cube can be found by
multiplying the length times the width times the
height.
V L x W x H
Find the volume of the cube.
8 cm
8 cm
8 cm
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6) The volume of a cube can be found by
multiplying the length times the width times the
height.
V L x W x H
Find the volume of the cube.
V 8 x 8 x 8
8 cm
V 512 cm3
8 cm
8 cm
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7) A cars gas mileage can be found by dividing
the miles traveled by the amount of gasoline used.
m
M
g
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7) A cars gas mileage can be found by dividing
the miles traveled by the amount of gasoline used.
A car travels 306 miles on 12 gallons of
gasoline. What is the cars gas mileage?
m
M
g
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7) A cars gas mileage can be found by dividing
the miles traveled by the amount of gasoline used.
A car travels 306 miles on 12 gallons of
gasoline. What is the cars gas mileage?
306
M
12
M 25.5 mpg
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8) A standard restaurant tip can be found by
taking 15 of the cost of the meal.
T .15(C)
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8) A standard restaurant tip can be found by
taking 15 of the cost of the meal.
T .15(C)
A meal costs 45. How much tip should you leave?
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8) A standard restaurant tip can be found by
taking 15 of the cost of the meal.
T .15(C)
A meal costs 45. How much tip should you leave?
T .15(45)
T 6.75
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9) The distance that a car travels can be found
by taking the cars speed and multiplying it by
the duration of time.
D RT
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9) The distance that a car travels can be found
by taking the cars speed and multiplying it by
the duration of time.
D RT
How far will a car travel in 2 ½ hours if its
speed is 55mph?
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9) The distance that a car travels can be found
by taking the cars speed and multiplying it by
the duration of time.
D RT
How far will a car travel in 2 ½ hours if its
speed is 55mph?
D (55)(2.5)
D 137.5 miles
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10) An average can be found by summing all of the
numbers and dividing by the number of numbers.
A Sum of all numbers Number of numbers
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10) An average can be found by summing all of the
numbers and dividing by the number of numbers.
A Sum of all numbers Number of numbers
Jacks test scores for the first quarter were
94, 86, 82, and 90. What was his average?
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10) An average can be found by taking summing all
of the numbers and dividing by the number of
numbers.
A Sum of all numbers Number of numbers
Jacks test scores for the first quarter were
94, 86, 82, and 90. What was his average?
A 352 4
A 88
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11) A sale price can be found by subtracting the
savings from the regular price.
Sale Price Regular Price Savings
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11) A sale price can be found by subtracting the
savings from the regular price.
An Ipod which normally sells for 160 is on sale
for 20 off. What is the sale price?
Sale Price Regular Price Savings
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11) A sale price can be found by subtracting the
savings from the regular price.
An Ipod which normally sells for 160 is on sale
for 20 off. What is the sale price?
Sale Price Regular Price Savings
(.20 x 160)
Sale Price 160 32Sale
Price 128
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The End